linux-kernel - Re: [PATCH v2 1/2] dt-bindindgs: clock: support NXP i.MX95 BLK CTL module

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Date: Wed, 28 Feb 2024 08:45:31 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Abel Vesa <abelvesa@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: linux-clk@...r.kernel.org, imx@...ts.linux.dev,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v2 1/2] dt-bindindgs: clock: support NXP i.MX95 BLK CTL
 module

On 28/02/2024 06:43, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
> 
> i.MX95 includes BLK CTL module in several MIXes, such as VPU_CSR in
> VPUMIX, BLK_CTRL_NETCMIX in NETCMIX, CAMERA_CSR in CAMERAMIX and etc.
> 
> The BLK CTL module is used for various settings of a specific MIX, such
> as clock, QoS and etc.
> 
> This patch is to add some BLK CTL modules that has clock features.

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching.

There are some typos, so you miss my filters...

> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  .../devicetree/bindings/clock/imx95-blk-ctl.yaml   | 61 ++++++++++++++++++++++
>  include/dt-bindings/clock/nxp,imx95-clock.h        | 32 ++++++++++++
>  2 files changed, 93 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/imx95-blk-ctl.yaml b/Documentation/devicetree/bindings/clock/imx95-blk-ctl.yaml
> new file mode 100644
> index 000000000000..6d33601034ae
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/imx95-blk-ctl.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/imx95-blk-ctl.yaml#

Filename like compatible. We talked about this.

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP i.MX95 Block Control
> +
> +maintainers:
> +  - Peng Fan <peng.fan@....com>
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - nxp,imx95-cameramix-csr
> +          - nxp,imx95-display-master-csr
> +          - nxp,imx95-dispmix-lvds-csr
> +          - nxp,imx95-dispmix-csr
> +          - nxp,imx95-netcmix-blk-ctrl
> +          - nxp,imx95-vpumix-csr
> +      - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  '#clock-cells':
> +    const: 1
> +    description:
> +      The clock consumer should specify the desired clock by having the clock
> +      ID in its "clocks" phandle cell. See
> +      include/dt-bindings/clock/nxp,imx95-clock.h
> +
> +  mux-controller:
> +    type: object
> +    $ref: /schemas/mux/reg-mux.yaml
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#clock-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  # Clock Control Module node:
> +  - |
> +    #include <dt-bindings/clock/nxp,imx95-clock.h>
> +
> +    syscon@...10000 {
> +      compatible = "fsl,imx95-vpumix-csr", "syscon";
> +      reg = <0x4c410000 0x10000>;
> +      #clock-cells = <1>;

Incomplete example. Add here mux controller and power domains.


Best regards,
Krzysztof